I found this on page 48 "Restore factory default settings SettingsUltraGauge SettingsRestore factory default settingsRestores all internal and configurable settings back to the factory defaults. Restoring all defaults should be used withcare as it restores all configuration such as Calibration, Gauge selection, Alarms settings, display settings, as well as allaccumulated MPG, MPH, Time, and Distance. This function is a global restore. There are generally individual restoresor resets for various functions which should always be used first to correct suspected issues. This can be considered theglobal “Reset” of UltraGauge.For Apple, the user should re-install the application for a Factory Reset to take place for the UltraGauge Application."

but do I also have to reset the adapter? I did the above "reset to factory" but now says that i am getting 1L/100km! lol